[FFmpeg-cvslog] doc/codecs: update skip_alpha documentation

[Timothy Gu]

ffmpeg | branch: master | Timothy Gu <timothygu99 at gmail.com> | Fri Oct 18 17:56:14 2013 -0700| [6879fe4265934ee80d3a1f343ebe94d026663d23] | committer: Stefano Sabatini

doc/codecs: update skip_alpha documentation

Merged-by: Michael Niedermayer <michaelni at gmx.at>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
Signed-off-by: Timothy Gu <timothygu99 at gmail.com>
Signed-off-by: Stefano Sabatini <stefasab at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6879fe4265934ee80d3a1f343ebe94d026663d23
---

 doc/codecs.texi |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/doc/codecs.texi b/doc/codecs.texi
index 74dd775..e79e462 100644
--- a/doc/codecs.texi
+++ b/doc/codecs.texi
@@ -1076,7 +1076,9 @@ Interlaced video, bottom coded first, top displayed first
 @end table
 
 @item skip_alpha @var{integer} (@emph{decoding,video})
-causes alpha plane not to be decoded, like "gray" which skips chroma.
+Set to 1 to disable processing alpha (transparency). This works like the
+ at samp{gray} flag in the @option{flags} option which skips chroma information
+instead of alpha. Default is 0.
 @end table
 
 @c man end CODEC OPTIONS